Yes. There is a fine line to tread though. Certainly gaining knowledge and understanding of prophecy and debating it is one thing. Becoming obsessed the rest of your life with it is unhealthy.
I assume with your title Mark of the Beast, its this area which you are enquiring about. First can of worms warning, you only need to do a quick search on these forums to see how much this topic is done to death. Then we have theology fall out with all the different end time senarios, including people who say everything in Revelation has already happened.
Moving on then
People become paraniod with "Mark of the Beast" which is also unhealthy. The Anti-Christ is also another unhealthy obsession with some people who try to work out who the anti-christ is, problem is might not have been born yet!
I feel sorry for the Christians who are caught in the fear of The Mark. Recently we had a huge hoo-ha over micro chip implants which can be used for all sorts of things, but easily removed if needed. "Do no have the implants, you will be taking the mark" they cry. NO.
Will the Mark be some sort of tech? Maybe. People obsess about it, interestingly enough there is artificall skin tatoo that can hold electronics powered by bodys own electronic impluses. Is this Mark? unlikely.
So what is the Mark? We will only know when it happens. Personally I think its a spiritual mark. The Anti-christ needs an army to fight Christ and Angel. What better way than to have all the human sheep take something that will change DNA maybe, definitly something that will also work on the spiritual side as well. The mark will be a visable change in the body which can be seen by other people who have taken it. With the body and spirit corrupted by DNA it will be impossible for those people to enter heaven and only place for them is hell.
So yes, do you study take an interest, but when it starts to consume you and you go looking for the Anti-christ and live in fear of the Mark, then yes that is when its unhealthy and wrong. So Stop. We will know the Anti-Christ when he emerges. However some folks think he as been and gone.